An illicit response?

elicit: develop or arouse something. 
The sad story will elicit your emotions and responses.
A problem solving team may elicit a solution faster than you alone.

illicit: illegal or otherwise forbidden (perhaps morally or against rules.)
The couple had an illicit meeting during the conference.

 Not sure how to remember which is which? Notice that illicit is illegal and ‘wrong’, so it can be considered an ill choice or action.